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Min max recording specifications, Electrical characteristics of the terminals, Frequency counter sensitivity and trigger levels – Atec Fluke-87V User Manual

Page 3: Frequency counter specifications

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Fluke 83V and 87V detailed specifications Fluke Corporation 3

MIN MAX recording specifications

Model

Nominal Response

Accuracy

83V

100 ms to 80 %

Specified accuracy ± 12 counts for changes > 200 ms in duration
(± 40 counts in ac with beeper on)

87V

100 ms to 80 %

Specified accuracy ± 12 counts for changes > 200 ms in duration

(dc functions)

> 25 % of range

120 ms to 80 %

Specified accuracy ± 40 counts for changes > 350 ms and inputs

(ac functions)

250 µs (peak)

Specified accuracy ± 100 counts for changes > 250 µs in duration

(Model 87 only)

1

(add ± 100 counts for readings over 6000 counts)
(add ± 100 counts for readings in Low Pass mode)

1

For repetitive peaks: 1 ms for single events.

Electrical characteristics of the terminals

Function

Overload

Input Impedance

Common Mode Rejection Ratio

Protection

1

(nominal)

(1 k

unbalance)

Normal Mode Rejection

1000 V rms

10 M

ΩΩ < 100 pF

> 120 dB at dc, 50 Hz or 60 Hz

> 60 dB at 50 Hz or 60 Hz

1000 V rms

10 M

ΩΩ < 100 pF

>120 dB at dc, 50 Hz or 60 Hz

> 60 dB at 50 Hz or 60 Hz

1000 V rms

10 M

ΩΩ < 100 pF

> 60 dB, dc to 60 Hz

(ac-coupled)

Open Circuit

Full Scale Voltage

Typical Short Circuit Current

Test Voltage

To 6.0 M

50 M

or 60 nS 600

6 k

60 k

600 k

6 M

50 M

1000 V rms

< 7.3 V dc

< 4.1 V dc

< 4.5 V dc

1 mA

100 µA 10 µA

1µA

1 µA

0.5 µA

1000 V rms

< 3.9 V dc

3.000 V dc

0.6 mA typical

1

10

6

V Hz maximum

Frequency counter sensitivity and trigger levels

Minimum Sensitivity (RMS Sine wave)

Approximate Trigger Level

Input Range

1

5 Hz - 20 kHz

0.5 Hz - 200 kHz

(DC Voltage Function)

600 mV dc

70 mV (to 400 Hz)

70 mV (to 400 Hz)

40 mV

600 mV ac

150 mV

150 mV

6 V

0.3 V

0.7 V

1.7 V

60 V

3 V

7 V (

≤ 140 kHz)

4 V

600 V

30 V

70 V (

≤ 14.0 kHz)

40 V

1000 V

100 V

700 V (

≤ 1.4 kHz)

100 V

Duty Cycle Range

Accuracy

0.0 to 99.9 %

Within ± (0.2 % per kHz + 0.1 %) for risetimes < 1 µs

1

Maximum input for specified accuracy = 10X Range or 1000 V.

Frequency counter specifications

Function

Range

Resolution

Accuracy

Frequency

199.99

0.01 Hz

± (0.005 % + 1)

(0.5 Hz to 200 kHz,

1999.9

0.1 Hz

± (0.005 % + 1)

pulse width > 2 µs)

19.999 kHz

0.001 kHz

± (0.005 % + 1)

199.99 kHz

0.01 kHz

± (0.005 % + 1)

> 200 kHz

0.1 kHz

unspecified